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Träfflista för sökning "WFRF:(Hofer Anders) srt2:(2005-2009)"

Search: WFRF:(Hofer Anders) > (2005-2009)

  • Result 1-10 of 16
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1.
  • Bolinsson, J, et al. (author)
  • Direct observation of atomic scale surface relaxation in ortho twin structures in GaAs by XSTM
  • 2009
  • In: Journal of Physics: Condensed Matter. - : IOP Publishing. - 1361-648X .- 0953-8984. ; 21:5
  • Journal article (peer-reviewed)abstract
    • We have studied the (110) GaAs surface of a structure containing ortho twins by cross-sectional scanning tunnelling microscopy and we have compared the experimental results with ab initio density functional theory calculations and STM simulations. Both experimentally and theoretically we find that the surface of different twin crystallites are significantly displaced with respect to each other, parallel to the twin boundary. This result is explained by a surface relaxation of the atoms in the (110) GaAs surface and the difference between the atomic configuration of the ortho twins.
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  • Elmlund, Hans, et al. (author)
  • Cryo-EM Reveals Promoter DNA Binding and Conformational Flexibility of the General Transcription Factor TFIID
  • 2009
  • In: Structure. - : Elsevier BV. - 0969-2126 .- 1878-4186. ; 17:11, s. 1442-1452
  • Journal article (peer-reviewed)abstract
    • The general transcription factor IID (TFIID) is required for initiation of RNA polymerase II-dependent transcription at many eukaryotic promoters. TFIID comprises the TATA-binding protein (TBP) and several conserved TBP-associated factors (TAFs). Recognition of the core promoter by TFIID assists assembly of the preinitiation complex. Using cryo-electron microscopy in combination with methods for ab initio single-particle reconstruction and heterogeneity analysis, we have produced density maps of two conformational states of Schizosaccharomyces pombe TFIID, containing and lacking TBP. We report that TBP-binding is coupled to a massive histone-fold domain rearrangement. Moreover, docking of the TBP-TAF1(N-terminus) atomic structure to the THID map and reconstruction of a TAF-promoter DNA complex helps to account for TAF-dependent regulation of promoter-TBP and promoter-TAF interactions.
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5.
  • Eriksson, Johannes, et al. (author)
  • Probing growth defects inside nanowires
  • 2006
  • In: Book of abstracts: Intl Conf on Nanosci and Technol, Basel, Switzerland (2006).
  • Conference paper (peer-reviewed)
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  • Gustafson, Johan, et al. (author)
  • Structure of a thin oxide film on Rh(100)
  • 2005
  • In: Physical Review B (Condensed Matter and Materials Physics). - 1098-0121. ; 71:11
  • Journal article (peer-reviewed)abstract
    • The initial oxidation of Rh(100) has been studied using high resolution core level spectroscopy, low energy electron diffraction, surface x-ray diffraction, scanning tunneling microscopy, and density functional theory. We report a structural study of an oxygen induced structure displaying a c(8x2) periodicity at an oxygen pressure above 10(-5) mbar and using a sample temperature of 700 K. Our experimental and theoretical data demonstrate that this structure is due to the formation of a thin surface oxide with a hexagonal trilayer O-Rh-O structure.
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9.
  • Hofer, Werner A, et al. (author)
  • Detection of spin-states in Mn-oped gallium arsenide films
  • 2007
  • In: Nanotechnology. - : IOP Publishing. - 0957-4484 .- 1361-6528. ; 18:4
  • Journal article (peer-reviewed)abstract
    • We show that isolated magnetic dipoles centred at the position of manganese impurities in a gallium arsenide lattice lead to spin polarized states in the bandgap of the III-V semiconductor. Spectroscopy simulations with a tungsten tip agree well with experimental data; in this case, no difference can be observed for the two magnetic groundstates. But if the signal is read with a magnetic iron tip, it changes by a factor of up to 20, depending on the magnetic orientation of the Mn atom.
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  • Result 1-10 of 16
Type of publication
journal article (12)
editorial collection (1)
conference paper (1)
doctoral thesis (1)
book chapter (1)
Type of content
peer-reviewed (12)
other academic/artistic (4)
Author/Editor
Hofer, Anders (9)
Lundgren, Edvin (5)
Mikkelsen, Anders (5)
Nilsson, Anders (2)
Thelander, Lars (2)
Vodnala, Munender (2)
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Sköld, Niklas (2)
Hofer, W. A. (2)
von Hofer, Hanns (2)
Borén, Thomas (1)
Moritz, Thomas (1)
Seifert, Werner (1)
Samuelson, Lars (1)
Klein, C. (1)
Andersen, Jesper N (1)
Gustafson, Johan (1)
Sadowski, Janusz (1)
Åkerlund, Hans-Erik (1)
Piskur, Jure (1)
Poláková, Silvia (1)
Linder, Tomas (1)
Gustafsson, Anders (1)
Hebert, Hans (1)
Andersen, Gorm (1)
Björnberg, Olof (1)
Pynyaha, Yuriy (1)
Rasmussen, Anna (1)
Møller, Kasper (1)
Sandrini, Michael (1)
Merico, Anna-Maria (1)
Compagno, Concetta (1)
Gojković, Zoran (1)
Åkerström, Malin (1)
Sjöberg, Britt-Marie (1)
Williams, H (1)
Gustafsson, Claes M, ... (1)
Schmid, M (1)
Varga, P (1)
Farge, G (1)
Falkenberg, M (1)
Teobaldi, Gilberto (1)
Tham, Henrik, 1942- (1)
Szilagyi, Zsolt (1)
Baraznenok, Vera (1)
Crona, Mikael (1)
Borg, Mikael (1)
Mäser, Pascal (1)
Bolinsson, J (1)
Ouattara, Lassana (1)
Cavar, Elizabeta (1)
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University
Umeå University (9)
Lund University (8)
Stockholm University (2)
Karolinska Institutet (2)
University of Gothenburg (1)
Royal Institute of Technology (1)
Language
English (14)
Swedish (2)
Research subject (UKÄ/SCB)
Natural sciences (10)
Medical and Health Sciences (2)
Social Sciences (2)
Engineering and Technology (1)

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